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Finding the Fourth Proportional to 672,073.86, 927,459.12 and 366,149.28

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Solution

The fourth proportional to 672,073.86, 927,459.12 and 366,149.28 is: 505,284.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,073.86 : 927,459.12 = 366,149.28 : x
  2. Step 2: Convert to fraction form
    672,073.86/927,459.12 = 366,149.28/x
  3. Step 3: Cross multiply
    672,073.86x = 927,459.12 × 366,149.28
  4. Step 4: Simplify right side
    672,073.86x = 339,588,489,017.43
  5. Step 5: Solve for x
    x = 339,588,489,017.43/672,073.86
  6. Step 6: Final answer
    x = 505,284.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.